Open vent needle valve and bleed air from hose. Then close vent valve.
开启排气针形阀，并从软管排放空气。然后关闭排气阀。
Check the valve parts before installation. Open and close the valve by hand for a period check the open-close position of the valve gate.
检查阀门各部位是否有松动现象，对阀门进行手动开启、关闭一个周期是否有异常现象，同时检查阀门的启闭位置是否准确。
Open the high-pressure ball valve on the crane pipeline and close the high-pressure ball valve on the hydraulic mini-truck pipeline.
打开起货机管路上的高压球阀，关闭供油至液压小货车的高压球阀。
Open the upper sea inlet valve and close the lower one.
打开高位海底阀，关闭低位海底阀。
Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.
进口蝶阀是指通过阀轴旋转来带动一个圆盘形的蝶板的转动，达到开启与关闭的一种阀门，在管道上主要起切断和节流用。
Open or close the valve stem travel relatively short, and very reliable cutting action, making this valve is suitable for medium and cutting off or regulating use.
阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。
Before proceeding with the installation, close the main water supply valve, open a water faucet to relieve the house pressure and then close the faucet.
在安装热水器之前，关闭主供水阀门，打开水龙头将住宅内的水压释放掉，然后关闭水龙头。
Open needle valve "b" to bleed air and then close "b" and vent needle valve.
开启针形阀“B”排放空气，然后关闭“B”和排气针形阀。
The remote control module controls the opening of valve by simulant signal. It also controls the open and the close of the valve by on-off signal.
远程控制模块实现远程模拟量对阀门开度大小的控制及远程开关量对阀门全开、全关的控制。
Slightly open shutoff valve No. 1 and allow water to fill the tube to the top then close No. 1 shutoff.
稍微开启关闭阀1号，将水注入管子直到顶部为止，然后关闭1号关闭阀。
HART institutions: automatic control under normal circumstances you can not manually open and close the valve.
手操机构：自动控制在不正常情况下可以手动操作阀门的启闭。
Meanwhile, the flap valve can be used to adjust weight, spring tension and the bottom outlet valve flap valve opening size to determine the pressure and open and close time.
同时，可以利用调整阀瓣的自重、弹簧的弹力以及阀瓣的底孔大小来确定阀门的开启压力和启闭时间。
Close the cold water inlet valve and open a nearby hot water faucet.
关闭冷水进水阀，打开附近的热水水龙头。
Adopt film cylinder in place of piston cylinder, which remove the abuse that piston ring is easily damaged and lead to not open or close valve.
采用薄膜式气缸替代活塞式气缸，排除了活塞环易损漏而导致无法启闭阀门的弊端。
Haed sealed ceramic ball valve new product that our company develop newly, product this use electricity, petroleum, chemical industry pipeline system open and close and close the device mainly.
硬密封陶瓷球阀是我公司新开发的新产品，该产品主要用于电力、石油、化工等管路系统上启闭装置。
Also known as butterfly flap valve imports, is to open and close with a round disc with the stem pieces and turn to open, close and adjust the fluid channel of a valve.
进口蝶阀又叫翻板阀，是用圆形蝶板作启闭件并随阀杆转动来开启、关闭和调节流体通道的一种阀门。
The valve is used with worm gear driving and electric device to form a complete set to realize open-close operation. It is the ideal equipment of adjusting flow.
配用电动装置及蜗轮传动装置，可实现启闭操作，是调节流量的理想设备。
Gate keeps closely movement with gate when opening and closing, makes valve open and close stability and cuts off the media, and so on.
在关闭和开启过程中阀座跟闸板一直紧贴运动，使得阀门启闭力稳定，并且具有切断介质等特点。
Air solenoid valves are used to open and close the valve.
采用航空电磁阀控制阀门开闭。
Based on solenoid valve design theory, by estimating the maximum air pressure and spring force, a direct operated solenoid valve is designed to control the open and close of the air chamber.
通过估算空气腔中的最大气体压力和回位弹簧的拉力，基于电磁阀设计基本原理，设计开发了一直动式电磁阀用于控制空气腔的开闭；
Butterfly valve is closed parts (valve flap or disc for disc), around the valve axis of rotation to achieve the open and close a valve, in the pipeline mainly as shut off and throttling effect.
蝶阀是指关闭件(阀瓣或蝶板)为圆盘，围绕阀轴旋转来达到开启与关闭的一种阀，在管道上主要起切断和节流作用。
Air lock and dust discharge valve open or close in turn up and down.
锁气翻板卸灰阀为上下交替开闭，自动复位机构。
Headstock and headstock is the moment to open or close the valve must be imposed by force or torque.
启闭力和启闭力矩是指阀门开启或关闭所必须施加的作用力或力矩。
Open and close valve is equipped for front-end memory type alloy detector and upper shifting fork.
并设前端装记忆合金检测器与上拨叉配合的开闭阀。
The dynamic curve and the important time parameters which describe the close-open process of valve have been given with the numerical calculation.
通过数值求解得出了阀关、开过程的动态曲线及动作时间等重要参数。
VTLEBF01 electric high vacuum (pressure) ball valve USES electric device to drive the stem and ball for open and close, thus to put through or cut off the medium flow in vacuum (pressure) pipeline.
VTLEBF01型电动高真空(压力)球阀是以电动装置驱动阀杆与球芯来执行启闭动作，达到接通或切断真空(压力)系统管路中的介质流。
Inlet valve and seat, due to open and close more frequently, the liquid flow rate is high, sealing will soon expire.
进液阀芯和阀座，由于开启关闭比较频繁，液体流速高，密封很快就会失效。
Diefa is used to open and close a circular Tip plates and then Fagan moves to open, and closed a valve to regulate fluid passages.
蝶阀是用圆形蝶板作启闭件并随阀杆转动来开启、关闭和调节流体通道的一种阀门。
Electric high vacuum butterfly ValveGID electric high vacuum butterfly valve USES electric device to drive the stem and disc to perform open and close action.
真空阀门系列：gid型电动高真空蝶阀的详细资料：gid型-电动高真空蝶阀gid型电动高真空蝶阀是以电动装置驱动阀杆与阀板执行启闭动作。
GID electric high vacuum butterfly valve USES electric device to drive the stem and disc to perform open and close action.
GID型电动高真空蝶阀是以电动装置驱动阀杆与阀板执行启闭动作。
应用推荐